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Finding the Fourth Proportional to 340,710.36, 510,500.55 and 207,186.72

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Solution

The fourth proportional to 340,710.36, 510,500.55 and 207,186.72 is: 310,436.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,710.36 : 510,500.55 = 207,186.72 : x
  2. Step 2: Convert to fraction form
    340,710.36/510,500.55 = 207,186.72/x
  3. Step 3: Cross multiply
    340,710.36x = 510,500.55 × 207,186.72
  4. Step 4: Simplify right side
    340,710.36x = 105,768,934,512.70
  5. Step 5: Solve for x
    x = 105,768,934,512.70/340,710.36
  6. Step 6: Final answer
    x = 310,436.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.